Thermochromic systems susceptible to yellowing are stabilized by inclusion of the anti -yellowing material in the composition.
Chlorosis: is the yellowing of frond tissue.
The present invention concerns a process for reducing the susceptibility of lignocellulosic material to unwanted yellowing, particularly yellowing caused by light and heat.
A unit optical fiber having excellent yellowing resistance.
The chitosan coating film is reduced in yellowing.
The Yellowness Index after high temperature aging is at least 5% less than the corresponding Yellowness Index of a corresponding polymer product produced without the triethylboron co- catalyst.
The cosmetic product is clear, transparent and does not turn yellow.
The polycarbonate powder can be subsequently melt extruded at an optimum shear rate to minimize yellowness and the need to add colorant to overcome the yellowness.
Optical brighteners are widely used for decreasing the apparent yellowness of polymeric materials.
Radiation-curable inner and outer primary optical fiber coatings are dislcosed having both fast cure speed and reduced rates of yellowing.
The coupling agent has a yellowness index of 20 to 70.
A polyester film is provided which is reduced in yellowing and has high quality.
Printed material comprising an OPV according to the invention shows significantly lower yellowing.
These foams may also posses improved yellowing resistance and improved water absorption rates.
In addition, a coloring agent may be incorporated into the film in order to mask yellowing.
A yellowing-proof polyamide fiber and the producing method thereof are disclosed.
Due to the low organics content, the composition has reduced risk of yellowing.
A composition for forming a less yellowing coating on a nail.
Also, the adhesive composition of the present invention can prevent yellowing and whitening.
These softeners do not impart additional yellowing characteristics to the fabric.